Floor-polishing machine.



I. B. BARRIRE.

FLOOR POLISHING MACHINE.

APPLIGATION FILED NOV.24, 1908.

Patented June 29, 1909.

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FLOOR POLISHING MACHINE.

APPLIOATION FILED NOV. 24, 1908.

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FLOOR POLISHING MACHINE.

APPLIUATION FILED Nov.24,1sos.

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.providedwith a curved cutaway portion 2 ISIDORE B. BARRIRE, 01* WATERBI'RY, ONiY EOllClIl.

FLOOR-POLISHING MACHINE.

Specification of Letters Patent.

Patented June 29, 1909.

Application filed November 24, 1908. Serial No. 464,234.

To all whom it may concern;

Bev it known that l, lsinonn B. BARRIRE, a citizen of the United States,residing at \Vaterbury, in the county of New Haven and Stateof'Uonnecticut, have invented certain new and useful Improvements in Floor-Polishin Machines, of which the following is a specification,reference being had therein to theaccompanying drawing.

This invention relates to surfacing machines especially adapted fortreating floors or thelike, and has specially in view a novelarrangement of operating mechanism therefor which will'permit of themachine operating upon surfaces closely adjacent to walls, and also thearrangement of the power mechanism so that it will be inclosed withinthe. body of the machine so that dust can not gain access thereto.

In carrying out the objects of theinvention generally stated above itwill of course be understood that the essential features involved aresusceptible to changes in details and structural arrangements, but apreferred and. practical embodiment of the same is in the accompanyingdrawings wherein Figure 1 is. a side elevation of the improved surfacingmachine. Fig. 2 is a top plan view. Fig. 3 is a vertical sectional view.Fig. 4 is a horizontal sectional view. Fig. 5 a detail view of the frontabrasive rollers and their supports, one of the rollers being shown insection. Fig. 6 is a detail view of the reel or drum for supporting theconnection with a source of electrical supply. Fig. 7 is a detailsectional view of a portion of said reel or drum. Fig. 8 is aperspective view of a belt shifter employed in connection with thepresent invention. Fig. 9 is a fragmentary sectional detail view of theadjustable support for the front abrasive rollers of the machine showingthe slidable relation of said support and the bod'yj of the machine.

Like characters of reference designate corresponding parts'in theseveral figures of thc Referring to the accompanying drawings, 1designates the body of the machine which is preferably rectangularshaped, and has the lower corners of its front and rear ends and 3,respectively which permit of the front and rear abrasive rollers 4 and 5to operate partially beneath the body of the tion of thc bodyhas a truck9 held in piv otal relation with its underside and which is providedwith a horizontal-arranged extension frame 10 which receives one end ofa steering rod 1-1 that projects through the body of the machine from thtop thereof, and at its upper end is provided with an 'operating handleor lever 12 which is in a position to be reached by an operator sealedupon the seat 13 of the top of the said body 1. Wheels or rollers 14 arecarried by said truck 9.

The body 1 of the machine at approxt mately its central portion carriesvertically arranged guide rods 16 that are oppositely disposed and eachprovided with a. longitudinal groove or slot 17 for the reception ofv aframe 18, the lower horizontal member 19 of which is provided onopposite front and rear faces with pivot ears 220-4 1 which receive thepivot ends of roller supporting bars 2223 for the front and rearabrasive rollers 4 and 5, said bars 22- projecting through the front andrear end of the body and being provided with end bearings 24-25 fortheroller shafts 26-.'27. The upper horizontal member of the frame 15 isprovided with a thrcudcd opening for the reception of a screw 29 whichextends through bearings 30 in the top of the body 1, and at its outerend is provided with a hand wheel 31 for rotating said screw to raise orlower said frame, to cause the front and rear rollers to be raised orlowered as desired.

An electric motor 32 is suitably mounted within the body of the machineand has a belt connection 33 with a pulley 34; fast on a horizontallyarranged shaft -34 which extends transversely across said body and atone end portion within said body, said shaft 34" carries a sprocketwheel 35 which has a sprocket chain connection 36 with a sprocket wheel37 mounted on the rear abrasive roller shaft 27, the lower flight ofsaid sprocket chain 36 passing over a sprocket wheel 38 mounted on thopropelling and supporting shaft 7 and adapted to impart a rotaryu'iovenient to the latter, as

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well as to the rear abrasive roller 5, to propel the machine, as will bereadily understood. The said shaft 34?, also. has a side pulley 39 fastthereon and which has a belt connection 40 with a pulley 41 fast on atransversely extending shaft 42 which carries a sprocket wheel 43 havinga sprocket chain connection 44 with a sprocket wheel 45 mounted on thefront roller supporting shaft.

shaft'26. A pulley 46 is mounted on said shaft 34 adjacent to the sidepulley 39 and has a rearwardly extending belt connection 47 with apulley 38 mounted on a transversely extending shaft 49 arrangedhorizontally in the rear portion of the body 1 of the machine. Saidshaft 49 also carries three pulleys 50, 51, and 52, respectively, thepulley 50 being fast on the shaft and turning therewith; the pulley 51being loose thereon, and the pulley 52 being of the well known typetermed reversing, and which rotates oppositely to the rotation of saidTwo belts 53 and 54 are used for 7 connecting said pulleys with a pulley55 shifted thereon.

carried by the power shaft 7, said pulley 55 being a long one to permitof the belts being A belt shifter 56 has its handle portion 57projecting through and above the top of the body 1, and is provided withan intermediate flattened portion 58 which has a pivotal engagement 59in the top of the body, the lower power portion projecting-into saidbody and being provided with an angular end 61 provided withlongitudinal openings 62 through which said belts 53 and 54 pass, saidopenings being so arranged that the belts are held in a spaced apartrelation. Assuming the parts to be in the position shown in Figs. 3 and4 of the drawings, it will be seen that by rocking the belt shifter 56on its pivotal mounting, the belts 53 and 54 will be shifted so that thebelt 53 will be on the loose pulley 51; the belt 54 will 'be on thereversin pulley 52, and the pulley 50- will be an id er; The shifting ofthe belts will impart a reverse movement to the power shaft 7, and, ofcourse, reverse the movement of the machine.

A dustreceptacle or scoop is held closely adjacent to the rear of eachof the front and rear abrasive rollers 4 and 5, said dust receptaclesbeing designated 63 and 64, respectively and are of substantially thesame Width at their mouth portions as the longitudinal length of saidrollers. A conveyer pipe 65 extends from each dust receptacle 63-64,said pipes having a junction 66 within the body 1 and extend upwardlytherein and through a suction fan casing 67 and deliver the dust into adust bag or receptacle 68. The fan or blower 69 of'said casing 67 ismounted on a shaft 70 carrying a pulley 71 which has a belt connectionwith a pulley 72 carried by the shaft 34*.

From the foregoing description it will be seen that when power isapplied to the shaft- 34" through its connection with the motor 32, arotary movement. will be impartml to the propelling shaft 7 of themachine, the front and rear abrasive rollers 4 and 3, and the suctionfan or blower (39, and it will also be seen that all of the operatingmechanism of the machine is arranged within the body of the machine soas to be protected from the dust incidental to the grinding operationsof the rollers 4 and 5 upon the floor orother surface. a

A drum or reel 7 3 is rotatably mounted on a transverseshaft 74 arrangedhorizontally in the rear of the body 1 and has wound thereon a wire 75which has one end'portion passing an opening 7 6 formed in the rear endof the body 1 and which is connected with a suitable source ofelectricalsupply.

The other end of said wire or conductor passes from said reel or drum73, up and through the top of the body 1 and connects with a switch 77,having the usual connections 78, 79 with the motor 32. The shaft 74carries two pulleys 80-81, the pulley 80 being fast thereon, and thepulley 81 having a reversing connection with said shaft. A belt 82connects said pulleys with a pulley 83 fast on the shaft 49. A beltshifter 85 similar in shape to that belt shifter 56,

has a pivotal mounting 86 in the top of the body 1, and an angular end87 adapted to shift the belt 82 from the pulley 80 to the reversingpulley 81, or vice versa, as desired. It will be seen that the describedconnection of the motor with its source of electrical supply, is onethat permits of the same having a wide range of movement over thesurface being treated, owing to the fact that the reelor drum will beoperated to wind or unwind its conductor in accord ance with thedirection it, is traveling relative to the source of electrical supply.

Preferably the abrasive rollers are arranged relative to the body of themachine as shown in Figs. 2 and 4 of the accompanying drawings. spacedapart and having their outer ends projecting slightly beyond the body ofthe machine, so as to adapt them for working close to walls or othervertical obstructions. The rear roller 5 is arranged to act upon thespace between the front rollers, said rear roller being of less widththan the width of the body.

Any suitable abrasive material may be used for the-working surfaces ofthe rollers,

and prefer-ably said abrasive material is held thereon in such a mannerthat it may be readily detached when worn out, or to permit of finer orcoarser material to be used, as circumstances may render necessary ordesirable. A convenient means for retaining the said material indetachable re lation with the roller is shown in Fig. 5

The front rollers 4 being llit) wherein screws 88 are used the heads ofwhich are sunk well into the material R9.

Claims:-

1. A machine of the character described comprising a body provided withpropelling mechanism, side guides carried by said body, a frame slidablymounted in said side guides, front and rear abrasive rollers having apivotal connection with said frame, and means for adjusting said frame.

2. A machine of the character described comprising a body provided withpropelling mechanism, guiding standards carried by said body, a frameslidably mounted in said standards, abrasive rollers having a pivotalconnection with said frame, and a screw carried by said body and adaptedto raise or lower said frame.

A machine of the character described comprising a body provided Withpropelling mechanism, longitudinally grooved standards carried by saidbody, a frame slidably mounted in said grooves, supporting arms having apivotal connection with said frame, abrasive rollers carried by saidarms, and means for raising o1 lowering said frame.

4. A machine of the. character described comprising a body provided withpropelling mechanisn'i, longitudinally grooved standards oppositelydisposed within said body, a frame slidably mounted in the grooves ofsaid standards, arms projecting from opposite sides of said fra me andhaving a pivotal connection therewith, abrasive rollers carried by theends of said arms, and a screw carried by said body and provided with ahand wheel at one end, and having its other end in engagement with saidframe, whereby said screw may be operated to raise or lower said frame.

In testimony whereof I hereunto atfix my signature in presence of twowitnesses.

ISIDORE B. BARRIRE. W'itnesses M. E. DUNN, ARTHUR J. SAVARD.

